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y = arcsec(x), Find dy/dx.

The key to this problem is to apply sec to both sides, and then differentiate implicitly: sec(y)=x; dsec(y)/dx = 1; tan(y)sec(y)dy/dx = 1; dy/dx = 1/(tan(y)sec(y)). Then using the fact that sec(y)=x and t...

Answered by Nicholas Y. • Maths tutor

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Explain how one transnational corporation (TNC) has contributed to the globalisation of the world’s economy (4m)

Coca Cola was first sold to the public in Atlanta Georgia in the US. It experienced overseas expansion as the sponsor for the Olympic Games in 1923 and travelled to Amsterdam in the Netherlands and was so...

Answered by Dulcie B. • Geography tutor

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How many baths of paint does it take to cover 10km of road markings?

10 km = 10000mAssuming 2 (x_m) markings (depending on the students knowledge of roads) on either side of road each marking 10cm (w_m) wideeach marking with a paint thickness of 5mm (t_m) each marking 10km...

Answered by Muhammad S. • Oxbridge Preparation tutor

1346 Views

Name and explain the three types of isomerism present in organic compounds.

There are three types of isomerism:1) Structural isomerism - Occurs when compounds which have the same molecular formula (eg. C4H9Br1) but have different atomic arrangements. Eg. CH2Br-CH2-CH2-CH3CH3-CHBr...

Answered by Jonny M. • Chemistry tutor

2568 Views

When solving a trigonometric equation, like sin(x) = -1/3 for 0 ≤ x < 2π, why do I get an answer outside the range? Why are there many correct answers for the value of x?

Drawing the graphs of the trigonometric functions sin, cos & tan, we can see that they all extend along the x-axis to infinity. Indeed, the sin & cos functions move between 1 and -1 on the y-axis,...

Answered by Alexandra G. • Maths tutor

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